A MAC Scheme-Based Cooperative Codes for Vehicular Connectivity in AHVN

In this paper, we propose a cooperative MAC scheme for vehicular connectivity in advanced heterogeneous vehicular networks (AHVN). AHVN is an integrated architecture between the vehicular ad hoc NETwork (VANET) and the existing vehicle to infrastructure (V2I) network. The proposed MAC is based on an adaptive backoff algorithm for accessing cooperative codes in V2I network while taking into account the failure connectivity probability in VANET. Further, we utilize a Markov chain to study the analysis of the backoff algorithm to access the cooperative channel codes. The metrics performance of the proposed scheme is measured in terms of vehicular throughput, average packet delay, access probability, and code utilization. The numerical results show that the proposed scheme attains to deliver both a delay- sensitive level of service for safety applications and satisfy QoS contracts for pre-negotiated non- safety applications.